How do you solve #sqrt(x+1)+2=4# and check the solution?
x = 3
1. Subtract 2 from both sides to isolate the square root.
2. To get rid of the square root, square both sides.
3. Subtract 1 from both sides to find x.
Now that we know that x = 3, check the solution by plugging its value back into the original equation.
The solution, x = 3, works!